可见光/红外双波段离轴四反光学系统设计

doi:10.3969/j.issn.1007-5461.2022.03.004

量子电子学报 ›› 2022, Vol. 39 ›› Issue (3): 324-333.doi: 10.3969/j.issn.1007-5461.2022.03.004

可见光/红外双波段离轴四反光学系统设计

曹一青1;2∗, 沈志娟1

( 1 莆田学院机电与信息工程学院, 福建莆田351100; 2 福建省激光精密加工工程技术研究中心, 福建莆田351100 )

收稿日期:2021-12-31 修回日期:2022-01-13 出版日期:2022-05-28 发布日期:2022-05-28
通讯作者: E-mail:caoyiqing1987@163.com E-mail:caoyiqing1987@163.com
作者简介:曹一青( 1987 - ), 江西九江人, 博士, 讲师, 硕士生导师, 主要从事光学成像系统及光学检测方法等方面的研究。 E-mail: caoyiqing1987@163.com
基金资助:
Supported by Project of Natural Science Foundation of Fujian Province (福建省自然科学基金, 2020J01916); Science and Technology Planning Project of Putian City (莆田市科技计划项目, 2020GP004); Introduction of Talent Research Start-up Fee Project of Putian University (莆田学院引进人才启动经费项目, 2019010)

Design of off-axis four-mirror reflective optical system for visible and infrared dual-band

CAO Yiqing1;2∗, SHEN Zhijuan1

( 1 School of Mechanical and Electrical, Information Engineering, Putian University, Putian 351100, China; 2 Fujian Laser Precision Machining Engineering Technology Research Center, Putian 351100, China )

Received:2021-12-31 Revised:2022-01-13 Published:2022-05-28 Online:2022-05-28

摘要/Abstract

摘要： 反射光学系统具有无色差、结构紧凑、体积小和成像性能优良等特点, 被广泛应用于空间遥感探测领域。首先, 基于同轴四反光学系统像差表达式, 构建了以系统均方根波像差为条件的成像评价目标函数; 进而应用开发的自适应变异概率遗传算法求解该目标函数, 得到一组合适的同轴四反光学系统初始结构参数解; 随后, 在上述系统结构基础上对其进行适当离轴消除系统中心遮拦, 并将四块光学面设定为偶次非球面, 应用光学设计软件Zemax 对其进行像差优化。最终设计了一款焦距为800 mm、工作波段为0.4∼1.6 m、全视场角为1◦、入瞳直径为80 mm 的成像质量良好的离轴四反光学系统。结果表明, 该方法为设计此类离轴光学系统提供了一种有效手段, 具有很强的实际应用价值。

关键词: 几何光学, 离轴四反, 初始结构, 改进遗传算法, 双波段

Abstract: Reflective optical system has the characteristics of no chromatism, compact structure, small size, excellent imaging performance and so on, which makes it very popular in space remote sensing detection field. Firstly, based on the aberration expressions of coaxial four-mirror reflective optical system, the evaluation objective function of imaging performance is established taking root mean square of system wave aberration as standard. Then, the developed adaptive variant probabilities genetic algorithm is applied to solve the evaluation function, and a set of suitable optical parameter solutions of initial structure of the coaxial four-mirror reflective optical system are obtained. After that, based on the above solution system structure, the proper off-axis operation is performed on it to eliminate the obscurations, four optical surfaces are set as even aspheric surfaces and the aberration of the system is optimized by using the optical design software Zemax. Finally, an off-axis four-mirror reflective optical system with good imaging performance is designed, which has a focal length of 800 mm, a working wavelength of 0.4∼1.6 m, a full field of view angle of 1◦ and an pupil diameter of 80 mm. The results show that the proposed research method provides an effective means for designing the kind of off-axis reflective optical systems, and has strong practical value.

Key words: geometrical optics, off-axis four-mirror reflective, initial structure, improved genetic algorithm; dual-band

中图分类号:

O435

曹一青, ∗, 沈志娟. 可见光/红外双波段离轴四反光学系统设计[J]. 量子电子学报, 2022, 39(3): 324-333.

CAO Yiqing, ∗, SHEN Zhijuan. Design of off-axis four-mirror reflective optical system for visible and infrared dual-band[J]. Chinese Journal of Quantum Electronics, 2022, 39(3): 324-333.

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可见光/红外双波段离轴四反光学系统设计

Design of off-axis four-mirror reflective optical system for visible and infrared dual-band

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